Optic for providing biased illumination
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United States of America Patent
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Nov 26, 2019
Grant Date -
May 23, 2019
app pub date -
Jan 23, 2019
filing date -
Jul 26, 2016
priority date (Note) -
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status (Latency Note)
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Abstract
An optic configured to create an asymmetric pattern of illumination includes a cavity defined by a sidewall. The cavity is oriented to receive light emitted by a light source that is disposed adjacent a light source receiving end of the cavity. Further, the optic includes a totally internally reflective surface that extends circumferentially about the sidewall and is tapered, so as to reflect emitted light that passes through the sidewall of the cavity and into a body of the optic. The totally internally reflective surface can have a form that is different on opposing sides of the cavity. Furthermore, the optic includes a convex surface that is disposed at a light emitting end of the sidewall to condense, focus, or collimate emitted light from the light source.
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